SDO HMI 2014-12-09 04:00:25 UT
See sunspots with tool (Click here to study sunspot positions and configurations with tool using white-light and magnetogram images and polarity drawing)
(It is recommended to set high resolution on your display!)
| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 53.71 | 317.89 | 26.97 | 159.58 | -3.88 | 1.29 | 8.59 | 246.32 | 0.1634 | 1435.6 | 449.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-12-09 04:00:25 UT
See sunspots with tool (Click here to study sunspot positions and configurations with tool using white-light and magnetogram images and polarity drawing) (It is recommended to set high resolution on your display!) |
| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 2.73 | 0.00 | 1.39 | -4.87 | 4.57 | 11.86 | 248.06 | 0.2218 | 942.0 | 736.8 | |
| 30.95 | 313.71 | 15.55 | 157.46 | -3.95 | 1.51 | 8.81 | 246.49 | 0.1674 | 1440.3 | 443.5 | |
| 9.12 | -2.00 | 4.58 | -2.00 | -4.01 | 1.16 | 8.45 | 245.29 | 0.1621 | 1445.0 | 999999 | |
| 13.64 | -2.00 | 6.84 | -2.00 | -3.59 | 0.79 | 8.09 | 246.78 | 0.1535 | 1528.5 | 999999 | |
| 0.00 | 1.45 | 0.00 | 0.73 | -5.31 | 359.85 | 7.15 | 233.97 | 0.1539 | 1179.0 | 901.2 | |
| Proj. U | - Projected umbra area in millionths of solar disc, negative values indicate | |
|
that the umbra consists of fragmented regions which cannot be separated without losing umbral area. In this way several spots (intensity minima in the umbra) have a common umbra, e.g. -2 means that the given spot shares an umbra with spot No.2, and the common U value is indicated at spot No.2. |
||
| Proj. WS | - Projected whole spot area in millionths of solar disc, negative values indicate | |
|
that several umbras have a common penumbra, e.g. -7 means that the given umbra shares a penumbra with umbra No.7, and the WS value is indicated at No.7. |
||
| Corr. U | - Corrected umbra area in millionths of solar hemisphere, for negative values see above | |
| Corr. WS | - Corrected whole spot area in millionths of solar hemisphere, for negative values see above | |
| B | - Heliographic latitude B; positive: North, negative: South | |
| L | - Heliographic longitude L | |
| LCM | - Longitudinal distance from the Sun's central meridian | |
| Pos. angle | - Position angle | |
| r | - Distance from the centre of Sun's disc in terms of Sun's radius | |
| MU | - Mean magnetic field within the umbra contour averaged the pixel values with sign. | |
| MP | - Mean magnetic field within the penumbra contour averaged the pixel values with sign. | |